class People {
  float hello(int a,int b) {
   return a+b;
}
  float hello(long a,int b) {
  return a-b;
}
  double hello(double a,int b) {
  return a*b;
}
}
public class Example4_12 {
  public static void main (String args[]) {
   People tom = new People();
   System.out.println(tom.hello(10,20));
   System.out.println(tom.hello(10L,20));
   System.out.println(tom.hello(10.0,20));
}
}

